Table 1

Distribution of median PI

Unlabelled PI (n=1416)Preductal PI (n=682)Postductal PI (n=670)
Median (95% CI)Median (95% CI)Median (95% CI)
1st %ile0.50 (0.40 to 0.60)0.50 (0.37 to 0.54)0.40 (0.40 to 0.50)
5th %ile0.70 (0.65 to 0.70)0.70 (0.70 to 0.80)0.60 (0.60 to 0.70)
25th %ile1.20 (1.20 to 1.30)1.30 (1.20 to 1.30)1.10 (1.10 to 1.20)
50th %ile1.80 (1.80 to 1.90)1.90 (1.80 to 2.00)1.80 (1.70 to 1.90)
75th %ile2.80 (2.65 to 2.91)2.70 (2.55 to 2.90)2.60 (2.50 to 2.80)
95th %ile5.90 (5.46 to 6.93)5.67 (4.80 to 7.15)4.67 (4.20 to 5.33)
99th %ile17.30 (12.4 to 20.00)17.50 (10.11 to 20.0)8.16 (6.25 to 14.24)
  • PI, perfusion index.